Perhaps you should try some spelling variations:
trung cao » truong cao, trung co, trung ca
trung cap » truong cao, trung tam
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tinh - hanh ((trung cao) or (trung cap)) dung cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - hanh ((trung cao) OR (trung cap)) dung cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - hanh ((trung cao) or (trung cap)) dung cong dan than ban*.